Performance Characteristics of n-Butanol-Diesel Fuel Blend Fired in a Turbo-Charged Compression Ignition Engine

Abstract

In this study, n-butanol-diesel blends were burned in a turbo-charged, direct injection diesel engine where the brake thermal efficiency, (BTE) or brake specific fuel consumption, (BSFC) was compared with that of ethanol-diesel or methanol-diesel blends in another study by other authors. The test blends used were B5, B10 and B20 (where B5 is 5% n-butanol by volume and 95% diesel fuel-DF). In this study, the BTE was higher and the BSFC improved more than in the other study. Because of improved BTE with increasing brake mean effective pressure, BMEP, the BSFC reduced, however the increased shared volume of n-butanol in DF increased BSFC. Adding n-butanol in DF slightly derated the torque, brake power output with increasing speed, and caused a fall in exhaust gas temperatures, (EGT) which improves the volumetric efficiency and reduces compression work. Therefore, a small-shared volume of n-butanol in DF fired in a turbo-charged diesel engine performs better in terms of BTE and BSFC than that of ethanol or methanol blending in DF.

Effect of Promoter Nature on Synthesis Gas Conversion to Alcohols over (K)MeMoS2/Al2O3 Catalysts

“…The increase in activity of KNiMoS 2 correlates with the increase in stability of the MoÀ H bond on NiMoS sites on the M-edge shown in our earlier calculations. [22] The increased MoÀ H bond energy is likely to imply an increased Mo-CH 3 Analysis of the synthesis gas conversion products on the KCoMoS 2 /KNiMoS 2 catalysts shows measurable amounts of C 5 products with linear and branched chains. The chain growth factor (α) on KCoMoS 2 and KNiMoS 2 is much higher than on the jnl catalysts.…”

“…CTL and GTL processes usually proceed via intermediate production of synthesis gas. Synthesis gas can be sourced from natural and associated gas, coal, jnl combustible minerals, and biomass . Synthesis gas is a very convenient intermediate for the synthesis of petrochemicals and can yield long‐chain linear alkanes and terminal alkenes, fatty alcohols, aldehydes, carboxylic acids, and jnl oxygenates .…”

“…Synthesis gas can be sourced from natural and associated gas, coal, jnl combustible minerals, and biomass. [2,3] Synthesis gas is a very convenient intermediate for the synthesis of petrochemicals and can yield long-chain linear alkanes and terminal alkenes, fatty alcohols, aldehydes, carboxylic acids, and jnl oxygenates. [1] Alcohols like ethanol and methanol can be used to increase octane rating of gasoline in particular.…”

Physical and Chemical Properties of 1-Butanol–Diesel Fuel Blends

“…Due to the beneficial ecological effects associated with the reduction of nitrogen oxide and smoke opacity emissions, there is significant interest in the use of organic oxygen compounds in diesel engines, in particular alcohols. Previous studies have mainly focused on the use of ethanol, − methanol, − and 1-butanol. − …”

Some Aspects of Compression Ignition Engine Performances Using n-Butanol-Diesel Mixtures

“…Butanol has good specifications represented by stable dissolved in net diesel and contents oxygen. Generally, oxygenation fuel significantly reduces particular matter and exhaust toxic gases such as carbon monoxide (CO), sulfur oxides (SOx), and, NOx [1]. Many researchers are tested ethanol, methanol, and butanol.…”